About: http://webisa.webdatacommons.org/227149890

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Every 400th year is a leap year (which is why 2000 was a leap year), so we have 303 regular years, and 97 leap years.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com